<!DOCTYPE html>  
<html>  
  
    <head>  
        <meta charset="UTF-8">  
        <title></title>  
        <style type="text/css">  
            .code {  
                font-family: Arial;  
                font-style: italic;  
                font-weight: bold;  
                border: 0;  
                letter-spacing: 3px;  
                color: blue;  
            }  
        </style>  
        <script type="text/javascript" src="../js/checkCode.js">  
        </script>  
    </head>  
  
    <body>  
        <div>  
            <input type="text" id="input" />  
            <input type="button" id="checkCode" class="code" onclick="createCode()" />  
            <a href="#" onclick="createCode()">看不清楚</a><br>  
            <input type="button" value="验证" onclick="validate()" />  
        </div>  
    </body>  
</html>  